Direct conversion of syngas to dimethyl ether as a green fuel over CuO-ZnO-Al2O3/HZSM-5 nanocatalyst: Effect of aging time on physicochemical and catalytic properties
作者： Reza Khoshbin , Mohammad Haghighi
DOI: 10.1063/1.4918733
关键词:
摘要: The effect of aging time on physicochemical and catalytic properties CuO-ZnO-Al2O3/HZSM-5 nanocatalyst for direct conversion syngas to dimethyl ether (DME) has been investigated. Nanocatalysts were synthesized using co-precipitation method in which the varied from 0 6 h. nanocatalysts studied by X-ray diffraction, Brunauer, Emmett, Teller, Field Emission Scanning Electron Microscopy (FESEM), energy dispersive X-ray, transmission electron microscopy, FTIR, temperature-programmed reduction hydrogen (TPR-H2) techniques. Results showed that crystallinity CuO-ZnO-Al2O3 increased significantly increasing time. FESEM analysis that, with extension time, aggregation over HZSM-5 increased. size particles active phase was between 25.0 127.1 nm an average 48.36 nm. TPR-H2 profiles indicated reducibility enha...
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